xQuery XML标记化字符串

Question

我是xQuery的新手，似乎无法实现以下功能：

<measInfo measInfoId="1542455297">
  <measTypes>1542455297 1542455298 1542455299 1542455300 1542455301 1542455302 1542455303 1542455304 1542455305 1542455306 1542455307 1542460296 1542460297 </measTypes>
  <measValue measObjLdn="LTHAB0113422/ETHPORT:Cabinet No.=0, Subrack No.=1, Slot No.=7, Port No.=0, Subboard Type=BASE_BOARD">
    <measResults>116967973 585560 496041572 682500 0 12583680 72080 520454 46670568 73432 2205837 1000000 1000000 </measResults>
  </measValue>
  <measValue measObjLdn="LTHAB0113422/ETHPORT:Cabinet No.=0, Subrack No.=1, Slot No.=7, Port No.=1, Subboard Type=BASE_BOARD">
    <measResults>0 0 0 0 0 0 0 0 0 0 0 0 0 </measResults>
  </measValue>
</measInfo>

我使用的是//measInfo/messTypes/fn:tokenize（text（），'\s+'）。我希望能为每个空格分隔的值返回一条记录，但它返回的值与//measInfo/measTypes/text（）相同

我做错了什么？

Answer 1

在XQuery3.0（由BaseX实现）中，这实际上起到了的作用：

declare context item := document {
<measInfo measInfoId="1542455297">
<measTypes>1542455297 1542455298 1542455299 1542455300 1542455301 1542455302 1542455303 1542455304 1542455305 1542455306 1542455307 1542460296 1542460297 </measTypes>
<measValue measObjLdn="LTHAB0113422/ETHPORT:Cabinet No.=0, Subrack No.=1, Slot No.=7, Port No.=0, Subboard Type=BASE_BOARD">
    <measResults>116967973 585560 496041572 682500 0 12583680 72080 520454 46670568 73432 2205837 1000000 1000000 </measResults>
</measValue>
<measValue measObjLdn="LTHAB0113422/ETHPORT:Cabinet No.=0, Subrack No.=1, Slot No.=7, Port No.=1, Subboard Type=BASE_BOARD">
    <measResults>0 0 0 0 0 0 0 0 0 0 0 0 0 </measResults>
</measValue>
</measInfo>
};
for $item in //measInfo/measTypes/fn:tokenize(text(),'s+')
return <item>{$item}</item>

返回。。。

<item>1542455297</item>
<item>1542455298</item>
<item>1542455299</item>
<item>1542455300</item>
<item>1542455301</item>
<item>1542455302</item>
<item>1542455303</item>
<item>1542455304</item>
<item>1542455305</item>
<item>1542455306</item>
<item>1542455307</item>
<item>1542460296</item>
<item>1542460297</item>
<item/>

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将<item>放在每个结果周围可以确保这些结果的呈现使每个项目在视觉上不同——否则，您可以将每个结果呈现为一行文本，读者不会清楚它们是否被fn:tokenize()分割为多个项目。

---

另一种方法是注入文字换行：

for $item in //measInfo/measTypes/fn:tokenize(text(),'s+')
return ($item, "
")